baber/WOPTO huggingface dataset:
Patent GB-214355-A (GB)
Title: An improved system and apparatus for telegraphically transmitting and reproducing writing, drawings, plans and the like
IPC: G08C21/00
Filed: 1923-01-31
Abstract: 214,355. MacIntyre, P. M. Jan. 31, 1923. Copying telegraphs. - Relates to copying telegraphs of the kind in which a strip, bearing the matter to be reproduced in the form of conducting elements on a non-conducting surface, or vice versa., is fed through a transmitting apparatus under a series of contact fingers arranged transversely of the direction of motion of the strip, the fingers being electrically connected to contacts on a rotary distributor to enable impulses from successive fingers to be sent to line and to a similar synchronous distributor controlling the recording devices at the receiving station, synchronism being ensured by reserving contacts on the distributors for the transmission of correcting currents. To obtain a more accurate reproduction, the strip is fed intermittently so that the strip and the contacts are relatively stationary during the passage of current between them. The strip 6 passes over a guide 11 beneath the pointed lower ends of contact fingers 12 arranged in a transverse row and capable of a slight vertical displacement and is held against the fingers by a spring-pressed contact bar 13 of triangular crosssection. The strip is drawn along by rollers 14, 15 one or both of which is driven through gearing from the motor-driven shaft 28 of the rotary distributor, an intermittent movement of the strip being obtained by the use in the gearing of a single-toothed wheel 37. During the insertion of the strip the guide 11 and the roller 15 are held down by pressing on a lever 14<a>. Each finger 12 is connected by a wire 23 to a corresponding terminal 22 connected by a wine 24 to a corresponding contact 25 on the rotary distributor, and an arm 27 of conducting material, secured to but insulated from the shaft 28, carries a brush 29 moving over the contacts 25, and is in electrical connection with a slip ring 32 on the shaft. Leads 31, 33 connect the slip ring 32, and the bar 13 in circuit with a battery 30 and the coil 43 of the transmitting relay. The contacts of the distributor at the receiving station are connected to fingers corresponding to the fingers 12 bearing on an intermittently-moving strip which has been moistened by passage over a roller dipping into a liquid suitable for effecting an electro-chemical marking action. Preferably a battery is arranged at the receiving station to increase the marking current and to neutralize the spacing current.
Patent GB-1141787-A (GB)
Title: Blade mounting for impact cutters
Inventor: FLORCZAK RICHARD ALEXANDER
IPC: D05B65/00
Filed: 1968-01-19
Abstract: 1,141,787. Sewing machines. SINGER CO. 19 Jan., 1968, No. 2958/68. Heading D1G. A cutter blade in a sewing machine is mounted on a carrier block for movements towards and away from a working surface, the blade being so connected movably relative to the block as to permit self aligning of the blade relative to said surface. The non-rotatable piston rod 36 of a pneumatic cylinder has a screwed end 50 engaged with a screwed bore 54 in a block 56 and secured to the latter by a locknut 52. Block 56 is formed with a recess 58 which has a flat inner end surface 60 and which defines legs 62, 64. Recess 58 houses a knife blade 66 seated against leg 64, and a resilient pad 68 seated against leg 62. Blade 66 has a cutting edge 74, and an arcuate edge 76 bearing against surface 60. Blade 66 and pad 68 are secured to block 56 by screws 70 which pass through clearance holes 72 in blade 66. The axis of rod 36 is inclined at an angle of about 75 degrees to the work-supporting surface behind the presser foot. The arrangement is thereby such that blade 66, on striking said surface, can rock about edge 76 to engage edge 74 fully with said surface, and blade 66 can also move laterally by compressing pad 68 to relieve the shock of impact with said surface.
Patent GB-560562-A (GB)
Title: Improved automatically locking sliders for sliding clasp fasteners
IPC: A44B19/30
Filed: 1943-02-23
Abstract: 560,562. Sliding - clasp fastenings. AERO ZIPP FASTENERS, Ltd., and MEITNER, B. Feb. 23, 1943, No. 2963. [Class 44] Locking means for a slider 4 comprises a ring or ball 6 coupled to a pull-member 11. Fig. 2 shows the ring 6 at the lower end of an arch in the slider, the underpart. of the ring pressing on the elements 7 and locking the slider. When the ring is pulled to the other end of the arch, which is higher, the slider is freed. A leaf spring may be arranged within the lower arch to press down on the ring.
Patent GB-196999-A (GB)
Title: A new or improved direction indicator for vehicles
IPC: B60Q1/34
Filed: 1922-02-02
Abstract: 196,999. Barker, J. H., and Reece, W. L. Feb. 2, 1922. Illuminated stencil and transparency indicators. -A direction indicator for vehicles comprises a plurality of indicating panels and a movable member 5 carrying a lamp 6. The box 5 runs on steel bars 4 and may carry a pair of hands 7 to project at either side according to the indication given. The box mav be traversed electrically by a rotor member rotating a toothed member on the lamp carrier.
Patent GB-473943-A (GB)
Title: Improvements in the manufacture of staple fibre or spun yarn
IPC: D01F2/28
Filed: 1937-02-03
Abstract: In the manufacture of staple fibre or spun yarn, a mixture of an electrolyte and an organic liquid having a boiling point above 100 DEG  C. is deposited on the filamentary materials in an amount not exceeding 1 per cent of their weight by applying a medium containing the mixture in a diluent having a boiling point lower than that of the organic liquid so that on exposure to the atmosphere preferential evaporation of the diluent occurs.  A suitable diluent is water; suitable electrolytes are magnesium chloride, magnesium acetate, magnesium chlorate, ammonium citrate, calcium chloride, calcium nitrate, zinc chloride, triethanolamine, triethanolamine oleate or stearate, or methylamine.  The electrolyte is preferably hygroscopic. Suitable organic liquids are polyhydric alcohols, e.g. diethylene glycol, ethylene glycol and glycerol.  These substances are hygroscopic and are employed with the amount of water which gives a mixture in equilibrium with the atmosphere.  Water as a diluent is in excess of this amount. 1--25 parts of electrolyte are employed/100 parts of liquid, and water may be added to give a solution containing 5--15 per cent of the mixture.  Difficulties due to tangling or breaking are avoided and corrosion of metal parts of the apparatus reduced.  Mixtures employed for the treatment of organic derivative of cellulose materials may include softeners therefor, e.g. monomethyl and monoethyl ethers of ethylene glycol or diethyl ether of ethylene glycol.  The medium may be applied to filaments before cutting or to staple fibres before or during spinning or to spun yarn.  It may be applied by nicks or rollers to travelling materials, e.g. to artificial filaments between the spinning cell and a cutting device.  Specifications 391,785, 421,405, 433,110; and 452,160 (as open to inspection under Sect. 91 of the Acts) are referred to.
Patent GB-803584-A (GB)
Title: Improvements in and relating to preparing yarns for knitting
IPC: D02G1/02
Filed: 1955-02-03
Abstract: 803,584. Knitting. PATENTEX, Inc. Feb. 3, 1955 [Oct. 19, 1954), No. 3269/55. Class 74 (2). [Also in Group IX] Stretchable fabric is knitted from mono- or mufti-filament yarn of a thermoplastic polymer, e.g. nylon, polyethylene terephthalate or acrylonitrile, which has been heat-set at a temperature e.g. 265-270‹ F. higher than that required in any subsequent treatment of the yarn or fabric and twisted e.g. 10-50 turns per inch, to impart to the set yarn a degree of liveliness sufficient to cause the yarn to snarl if relaxed, optionally with some twist retained in the yarn. The yarn may have been pretwisted e.g. 20-60 turns per inch in similar or opposite direction to the twist applied after setting. When spooled yarn is delivered to the knitting machine it is unwound in a direction tending to impart twist opposite to the twist in the yarn, in order that the yarn may be free from snarls or knots at this stage. In knitting a stocking, oppositely twisted yarns may be fed separately to two carriers to enable these yarns to be knitted in alternating courses, as in the process of Specification 786,551. As shown, each spool is mounted on a shaft 18 suspended from a hanger 17 by means of a boss 19 and slot 20 and held thereon by a key 21 pivotable in a slot 23 ; yarn 16 is withdrawn over and around a detachable draw cap 13 so that a light controlling tension is applied. Control of the " liveliness " of the yarn may also be assisted by treating the yarn or package thereof with a thin oil or oily liquid which imparts temporary limpness.
Patent GB-468251-A (GB)
Title: Improvements in, or relating to, electrical socket couplings or socket outlets and switch-socket combinations
IPC: H01R13/453
Filed: 1936-02-04
Abstract: 468,251. Plug - and socket couplings. CRABTREE & CO., Ltd., J. A., and Mc- LOUGHLIN, H. F. Feb. 4, 1936, No. 3301. [Class 38 (i)] Spring - loadec arc-quenching plungers, housed ir the current-carrying socket - tubes of a three-socket member are locked in their forward or pinexcluding positions, by a spring-loaded device which is operated by the earthpin. The plungers a in the socket tubes t have grooves a<1> into which catch-plates f on the slide c<2> enter to lock the plungers in their forward positions. The slide is urged towards the earth-pin socket e by the spring c<1>. An extension c<3> on the slide passes through a seat e<1> in the wall of the earth-pin socket, so that when the earth-pin is inserted in its socket, the slide is displaced to free the plungers a and allow them to be depressed.
Patent GB-1134331-A (GB)
Title: Method and means for exploring subsurface formations located below a body of water
Inventor: ONGKIEHONG LEO
IPC: G01V1/104
Filed: 1966-01-25
Abstract: 1,134,331. Seismic prospecting. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 25 Jan., 1966, No. 3308/66. Heading H4D. In a seismic reflection method of exploring geological formations located below a body of water by means of a pressure wave generated by the formation of a submerged bubble, secondary pressure waves are suppressed by admitting gas to the interior of the bubble to prevent its implosion. Several embodiments of the pressure wave generator comprising a first bell in which a gas mixture is exploded, a second bell adjacent to or partly surrounding the first bell and which is supplied with gas for preventing the implosion, and gas-supply conduits with orifices in or below the bells are described. Alternative embodiments in which the bubble is formed by an electrical discharge between two electrodes are described.
Patent GB-320589-A (GB)
Title: Improved process for obtaining glutamic acid
Filed: 1929-01-31
Abstract: 320,589. Deutsche Gold-und Silber- Scheideanstalt vorm. Roessler, and Bromig, K. Jan. 31, 1929. Glutamic acid.-Glutamic acid hydrochloride. from which free glutamic acid can be recovered in known manner, is obtained by boiling waste liquors of sugar works and distilleries with concentrated hydrochloric acid, separating insoluble organic matter from the hot solution, cooling the solution and separating the substances, principally alkali metal salts, which are then precipitated. The solution is then concentrated to about two-thirds of its original volume, any further precipitated substances are separated and the concentrate is saturated with hydrochloric acid gas at temperatures below about 20 C. On standing, glutamic acid hydrochloride separates, and may be purified by dissolving it in dilute hydrochloric acid, decolourizing the solution with active charcoal and reprecipitating with hydrochloric acid gas. A process of obtaining glutamic acid is referred to, in which similar starting materials are boiled with hydrochloric acid, the solution evaporated to dryness, and glutamic acid separated in the form of its difficultly soluble calcium salt by dissolving the residue in water and adding calcium hydroxide. French Specification 591,059 is referred to.
Patent GB-996935-A (GB)
Title: Air pressure operated sump pump
IPC: F04D15/02
Filed: 1964-01-27
Abstract: 996,935. Centrifugal pumps. CHICAGO PNEUMATIC TOOL Co. Jan. 27, 1964 [March 1, 1963]. No. 3360/64. Headings F1C and F1F. [Also in Divisions F2 and G3] A sump pump, as for mines and gravel and oil refinery pits, comprises an impeller driven by an air motor, valve means controlling flow of pressure air through a main passage to the motor, a control chamber connected with the main air passage and a diaphragm chamber, a conduit having its upper end connected to the control chamber and its lower end dipped into the sump water, means responsive to displacement of diaphragm means upon development of a predetermined back pressure in the diaphragm chamber to cause movement of the valve means, and means yieldably resisting the movement of the diaphragm and valve means. A valve 73, Figs. 3 and 8, is controlled in accordance with the water level in a sump, to open or close ports 69 interconnecting a pressure air inlet passage 41 with passages 43, 23 leading to a sliding vane motor 11 which drives the pump impeller 12 through shaft means sealed by an annular plate 30 and an 0-ring 40. Pressure air is continuously bled from the passage 41 through a restriction 119, Fig. 1, to a control chamber 114 which is connected with a conduit 117 and, through a restriction 113, with a diaphragm chamber 112. When the water level in the sump rises to the level H the back pressure, created by the water head, in the conduit 117 and chambers 114, 112 causes a diaphragm 101 to move to the right against the action of a spring 97, to axially slide a sleeve 82 over an extension 62 of a stationary sleeve 55. This movement causes a toggle mechanism 89, 91, 92 to snap over to its alternative position and move a pilot valve 59, within the extension 62, to the left to uncover an opening 58 and vent a chamber 75 to atmosphere through opening 58, slots 93, 90 and a chamber 49. Normally, by virtue of orifices 78, the pressure differential across the valve 73 is zero. Thus the venting of the chamber 75 allows the air pressure in the passage 41 to move the valve 73 to the left against the action of a spring 76, thereby uncovering ports 69 and permitting pressure air to pass to drive the motor 11. When the water level in the sump falls to the level L, the back pressure created by the water head is insufficient to hold the diaphragm against the action of the spring 97 so that the valve 73 is closed and the pump stopped. The levels H and L may be adjusted by adjusting the height of the lower end 120 of the conduit 117. The conduit may be formed in the pump housing.
Patent GB-1180888-A (GB)
Title: Improvements in or relating to Filters and Filter Packs.
Inventor: MARSHALL DENNIS ALBERT GEORGE
IPC: B01D46/30
Filed: 1966-01-25
Abstract: 1,180,888. Filter. D. A. G. MARSHALL. 25 April, 1967 [25 Jan., 1966], No. 3375/66. Headings B1D and B1T. A filter for gas and/or liquids comprises a honeycombe of cells 12 containing activated carbon particles in which the open ends of the cells are closed by screens 14, 16 bonded to the cells by open-work metal grills 18, 20 having a coating of polyethylene which provides the desired bonds. The cells may be only partially filled with activated carbon to form a bypass filter. The honeycombe of cells 12 may be made of strips of metal, card or synthetic plastic which have been joined together at spaced apart areas and expanded, screens 14, 16 may be synthetic plastic or metal, and grilles 18 and 20 may be weld mesh or expanded metal. To make the filter, the grilles are coated with the polyethylene by being heated and dipped in or sprayed with powdered polyethylene which brings the polyethylene to the molten plate, whereupon screens 14 and 16, grilles 18 and 20 and honeycombe 12 are pressed together. The filters may be arranged in casing 20 in V- formation in open work trays preceeded by a grille 22 and pleated filter (24) surrounded a metal frame 26.
Patent GB-1034052-A (GB)
Title: Metal vacuum joint
IPC: F16J15/08
Filed: 1964-01-28
Abstract: 1,034,052. Pipe coupling; joint making packing. VARIAN ASSOCIATES. Jan. 28, 1964 [Feb. 6, 1963], No. 3670/64. Headings F2B and F2G. A coupling for a vacuum system comprises a pair of flange members adapted for movement relative to each other, a sealing gasket positioned between said flange members, each of the flange members having a face with a bevelled portion at an angle of between 55 degrees and 75 degrees to the direction of movement of the flanges, and separated from each other by the gaskets and trapping means forming, with the bevelled portions, a cavity adapted to trap the sealing gasket upon relative movement of the flange members. In one embodiment (Fig. 1) the gasket is held between the bevelled portions 20 of the flanges 11 and a back-up ring 23 contained in recesses in each of the flanges. The flanges are held together by bolts passing through the flanges and nuts attached to the bolts or bolts passing through one flange and screwing into the other. In a second embodiment (Fig. 2) the back-up ring is replaced by a second flange 26 on one of the flange members, which is receivable in a recess in the other flange member when the coupling is tightened. In this embodiment the flanges 11<SP>1</SP>, 11<SP>11</SP> are held together by bolts engaging clamps 32. The vacuum system is preferably welded to the flanges and the gaskets may be copper wire with its ends joined by cold welding.
Patent GB-779841-A (GB)
Title: Improvements in or relating to vibrating screen device
Inventor: SAXE WALTER E
IPC: B07B1/28
Filed: 1955-02-08
Abstract: 779,841. Sifting apparatus. CONVEYOR CO. Feb. 8, 1955, No. 3695/55. Class 117 A vibratory screen consists of a rectangular frame of angle bars 16-19, to which a screen 25 is detachably attached, suspended from cables 12, 13 secured to resilient mountings on a support 74. Driven shafts 45, 46 extending parallel to the frame and mounted in bearings 47 - 49 carry eccentric weights 64, 65 and 66, 67 respectively, which are adjustable longitudinally of the shafts to vary the vibrating effect. A transverse shaft 55 driven by belting 14 drives the shafts 45, 46 in opposite directions and the opposing weights 64, 66 and 65, 67 are arranged so that they are both directed either inwardly or outwardly at the same time. The roating weights thereby set up forces which oppose each other when the weights are in a laterally extended position and augment each other when the weights are in upper and lower extended positions, thereby producing oscillations in a vertical plane. Longitudinal stiffeners 26, 27 extend along the length of the screen and angle members 28, 29 attached to the frame secure the stiffeners 27. Hooks 36 extending through an angle member 35 anchors the stiffener 26. Couplings 81 on the upper ends of the cables 12, 13 each engage a link 77 passing through an orifice in the support and the larger upper end of the link engages .the top of a spring 76 in a housing 72. Material is fed to the upper end of the device and the smaller particles pass through the screen and the larger ones fall from its lower end. The screen, which may be longitudinally arched, may have a smaller mesh at its upper end than at its lower part.
Patent GB-1211413-A (GB)
Title: Ferroresonant amplifying servomotor
IPC: H02K17/30
Filed: 1968-01-24
Abstract: 1,211,413. Ferroresonant motor; control of A.C. motors. RUMANIA, MINISTRY OF MACHINE BUILDING INDUSTRY. 24 Jan., 1968 [25 Jan., 1967], No. 3734/68. Headngs H2A and H2J. [Also in Division H3] A servomotor has a stator with at least two pole pairs, each pole being wound with primary, saturation and control windings. The primary windings of each pole pair are connected together and to a capacitor to form a ferroresonant circuit. As shown, primary coils 11, 12; 13. 14 are connected in series with capacitors 15, 16 respectively to the A.C. supply. The saturation windings 17, 18; 19, 20 are each connected in series with respective diodes 21, 22, 23, 24, with the diodes associated with the windings of each pole pair being oppositely poled, across the A.C. supply. The control windings 25, 26; 27, 28 of each pole pair are connected in series and connected to a D.C. supply. The control and saturation windings associated with the respective pole pairs are arranged to produce additive and subtractive magnetic fields respectively. The variation in saturation between the pole pairs causes a phase shift between the A.C. currents in the primary windings which produces a rotating field in a direction determined by the polarity of the control signal. The motor has a shortcircuited rotor. In a modification, Fig. 5 (not shown), additional reaction coils are provided so that almost instantaneous current changes are obtained on application of a control signal, Fig. 6 (not shown). The laminated poles are constructed of two U-shaped stampings 7, 8 stacked alternately with closure pieces 9, 10 also stacked alternately, and the pole is secured in the stator structure by wedges 5 of fibrous or plastics material.
Patent GB-1513531-A (GB)
Title: Gas burners
IPC: F23D14/64
Filed: 1977-01-28
Abstract: 1513531 Gas-burner BRITISH GAS CORPORATION 28 Jan 1977 [30 Jan 1976] 03764/76 Heading F4T A gas burner comprises a main air supply conduit 10, a convergent-divergent nozzle 20 in the conduit, primary air supply passages 18, a secondary air supply passage 22, and a tertiary air supply passage 24. The latter may be replaced by apertures (28) Fig. 2 (not shown) or both passage 24 and apertures (28) may be provided. The gas is supplied via a pipe 16.
Patent GB-959433-A (GB)
Title: Improvements in and relating to plastic containers, and improved method of closing such containers and apparatus for performing the same
IPC: B29C67/00
Filed: 1963-01-30
Abstract: 959,433. Containers; packaging. R. MAUSER, A. MAUSER, and P. MAUSER. Jan. 30. 1963 [Oct. 3, 1962], No. 3775/63. Headings B8C and B8D. A plastics container 1 with a snap-on lid has lips 5 formed on either side of a filling slit so that the container can be sealed by depressing the top of the lid thereby closing the lips 5 which may then be sealed by adhesive or by welding. The container is sealed by the apparatus shown in Figs. 5 and 6 the containers being advanced by belts 11 and 13 to a pair of adjustable rollers 19 which depress the top of the container. The belt 20 then engage the lips and press them more firmly together and advance the containers to the spring-applied electromagnetically released reciprocal heat-sealing jaws 22. The top of the container may be depressed by a ram 25 associated with the jaws 22 the alternative positions of the combined device being shown.
Patent GB-853297-A (GB)
Title: A process for the manufacture of aliphatic fluorine compounds
IPC: C07C17/20
Filed: 1957-02-04
Abstract: Aliphatic fluorine compounds are prepared by reacting a halogenated aliphatic hydrocarbon which contains at least one halogen atom, other than fluorine, with hydrogen fluoride in the presence of an antimony compound and metallic aluminium.  Suitable catalysts are antimonous halides in the presence of chlorine or antimonic halides.  The reaction may be conveniently carried out in an aluminium vessel which is found to accelerate the reaction rate and also to be corroded less easily than steel or copper vessels.  The reaction may also be activated by the addition of 0,1 to 10% of an arsenic halide e.g. the trichloride or trifluoride based on the weight of the antimony compound.  In examples (1) trifluorodichloroethane and difluorotrichloroethane are prepared from pentachlaroethane (2) (3) tetrafluorodichloroethane and trifluorotrichloroethane are prepared from hexachloroethane, (4) methylene difluoride is prepared from methylene dichloride.  (5) 1:1:1-trifluoroethyl chloride is prepared from trichlorethylene The trichlorethylene may be replaced by 1:2-dichlor-ethylene, 2-fluoroheptachloropropane or 1:2:3:4-tretrafluorohexachlorobutane.  Specifications 462,969 and 706,598 are referred to.